Professor of Civil Engineering, Sharif University of Technology

Professor of Soil Science, Bahir Dar University, Bahir Dar, Ethiopia

Associate Professor in Faculty of Science, Universiti Kebangsaan Malaysia

METER Group, USC, U of Michigan, UNL

Professor of Engineering Geology and the Environment, Rivers State University

Civil Engineering Research Institute for Cold Region (CERI), Sapporo, Japan

Research Assistant Professor, Hong Kong Polytechnic University

Lecturer of Department of Soil Science, Hasanuddin University

Embry-Riddle Aeronautical University

Assistant professor of Soil science, Wolkite University